In a plant where every unit depends on the next, planning in silos guarantees friction. Integrated planning aligns maintenance, projects and operations around one schedule.
A petrochemical complex is a system of dependencies. A delay in one unit ripples into feedstock, utilities and downstream processing. Yet planning is often done unit by unit, team by team — maintenance here, capital projects there, operations somewhere else. The result is predictable: clashes, double-booked resources, and a plant that's always firefighting.
Integrated planning is the antidote.
What "integrated" actually means
It's not a single mega-schedule that nobody can read. It's a set of aligned plans that share the same resource pool, the same calendar, and the same source of truth — so that when maintenance and a capital project both want the same crane in the same week, the conflict surfaces in planning, not on the day.
The three streams that most need aligning:
- Maintenance & reliability — preventive work, inspections, minor repairs
- Capital & modification projects — tie-ins, revamps, debottlenecking
- Turnarounds & shutdowns — the windows where the big work lands
The payoff
When these are planned together, three things change:
- Resource conflicts disappear before they happen. Shared histograms make over-allocation visible weeks ahead.
- Work gets bundled intelligently. Jobs that need the same shutdown window are batched, cutting the number of times a unit comes down.
- Leadership sees one picture. Instead of three reports that don't reconcile, there's a single integrated view of where the plant is heading.
Integrated planning doesn't add work. It removes the rework that fragmentation creates.
Where it tends to break
The most common failure is integration on paper only — three schedules nominally linked but never genuinely reconciled, with no one owning the whole. Integration needs a dedicated planning function whose job is the system, not any single stream.
That function doesn't have to be large or on-site. It has to be disciplined, consistent, and working from one source of truth. For many plants, a remote planning desk delivering into the site's own P6 environment provides exactly that — the integration discipline without the overhead of a large in-house controls team.
Start small
You don't need a transformation programme. Pick the next shutdown window, plan all three streams into it together, and measure the difference in resource conflicts and rework. The case for integration tends to make itself.